I flashed UIFlow 1.4.5.1 with M5 Burner on my new M5StickC Plus. Sice then only the lower left of the screen displays something useful, most of the screen is covered with black an white lines.

Also colors are skewed, e.g. I set the screen to blue, then only the small working rectangle shows up in red. If I set the screen to red, it lights up yellow and so on.

I remember the screen working fine the first time I turned the device on. There where some preinstalled apps on it. Is there any way of a factory reset or could you tell me why the screen behaves that way?

Thanks.